Centro de Astrofísica U.Porto

Biographic notes
Main research interests include the search for Extrasolar planets using radial-velocity and transit techniques, the study of the statistical properties of extrasolar planets and their host stars, and the use of high resolution stellar spectroscopy for the determination of stellar atmospheric parameters and abundances in solar-type stars. In this context I am the national Co-PI of the ESPRESSO project for a new high resolution ultra-stable spectrograph for the VLT, and board member of the CHEOPS/ESA mission.

Other interests include the study of low mass star formation (in the near-IR), stellar multiplicity in young stars, and the chemical properties of star forming regions.

Lastest publications at CAUP/IA

A. Psaridi, H. P. Osborn, F. Bouchy, M. Lendl, L. Parc, N. Billot, C. Broeg, S. G. Sousa, V. Zh. Adibekyan, O. Attia et al. (including: E. Delgado-Mena, N. C. Santos, S. C. C. Barros, O. Demangeon), 2024,
Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815,
Astronomy & Astrophysics, 685, 24
>> Abstract

A. Castro-González, J. Lillo-Box, A. C. M. Correia, N. C. Santos, D. Barrado, M. Morales-Calderón, E. Shkolnik, 2024,
Signs of magnetic star-planet interactions in HD 118203
TESS detects stellar variability that matches the orbital period of a close-in eccentric Jupiter-sized companion,
Astronomy & Astrophysics, 684, 19
>> Abstract

F. Guarneri, L. Pasquini, V. D'Odorico, S. Cristiani, G. Cupani, P. Di Marcantonio, J. I. González Hernández, C. J. A. P. Martins, A. Suárez Mascareño, D. Milaković et al. (including: N. C. Santos, S. G. Sousa), 2024,
Fundamental physics with ESPRESSO: a new determination of the D/H ratio towards PKS1937-101,
Monthly Notices of the Royal Astronomical Society, 529, 15
>> Abstract

V. Zh. Adibekyan, S. G. Sousa, E. Delgado Mena, N. C. Santos, G. Israelian, S. C. C. Barros, Z. Martirosyan, A. A. Hakobyan, 2024,
Density discrepancy between transit-timing variations and radial velocity: Insights from the host star composition,
Astronomy & Astrophysics, 683, 6
>> Abstract

V. Singh, G. Scandariato, A. M. S. Smith, P. E. Cubillos, M. Lendl, N. Billot, A. Fortier, D. Queloz, S. G. Sousa, S. Csizmadia et al. (including: O. D. S. Demangeon, N. C. Santos, S. C. C. Barros), 2024,
CHEOPS observations of KELT-20 b/MASCARA-2 b: An aligned orbit and signs of variability from a reflective day side,
Astronomy & Astrophysics, 683, 25
>> Abstract

S. Cristiani, G. Cupani, A. Trost, V. D'Odorico, F. Guarneri, G. Lo Curto, M. Meneghetti, P. Di Marcantonio, J. P. Faria, J. I. González Hernández et al. (including: C. J. A. P. Martins, N. C. Santos, S. G. Sousa), 2024,
Probing the small-scale structure of the intergalactic medium with ESPRESSO: spectroscopy of the lensed QSO UM673,
Monthly Notices of the Royal Astronomical Society, 528, 15
>> Abstract